I'm sorry that you're not yet seeing the results of your hard work - that's very frustrating. As you've seen, the Verbal can be harder to improve than the Quant.

Whenever students tell me "I've been studying for months but I haven't seen any improvement!" usually the missing factor turns out to be that they haven't been REVIEWING deeply enough.

It's not enough to watch read the books and do practice problems (although those are a big part of the process). You also have to analyze every problem deeply after you've done it, and track what kinds of mistakes you were making.

For SC, you want to ask yourself:
- was I thinking about the MEANING of the sentence?
- did I identify the overall structure of SUBJECT + VERB?
- did I identify markers of particular grammar issues: parallelism, comparisons, modifiers, etc?
- did I get distracted by meaningless differences in the answer choices, or did I focus on ones that spoke to clear rule violations?

For CR, ask yourself:
- did I identify the question type?
- did I identify the LOGICAL GAP in the argument (for assumption, strengthen, weaken, and evaluate questions) before looking at answer choices?
- can I identify why each wrong answer is wrong?

For RC, ask yourself:
- did I understand the basic message of the passage?
- was every word justifiable in the answer choice that I chose?
- did I fall for trap answers: too extreme, too opinionated, outside assumptions, etc?

Start recording & tracking the kinds of mistakes you make, and you'll start to see improvement. Here's how to track & review:
https://www.manhattanprep.com/gmat/blog ... -studying/
https://www.manhattanprep.com/gmat/blog ... -problems/

And here are some helpful articles on Verbal strategy:
https://www.manhattanprep.com/gmat/blog ... -a-lawyer/
https://www.manhattanprep.com/gmat/blog ... orrection/
https://www.manhattanprep.com/gmat/blog ... ng-part-1/